500050909 has 2 divisors, whose sum is σ = 500050910. Its totient is φ = 500050908.

The previous prime is 500050897. The next prime is 500050921. The reversal of 500050909 is 909050005.

It is a balanced prime because it is at equal distance from previous prime (500050897) and next prime (500050921).

It can be written as a sum of positive squares in only one way, i.e., 492706809 + 7344100 = 22197^2 + 2710^2 .

It is a cyclic number.

It is not a de Polignac number, because 500050909 - 2⁷ = 500050781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500050979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250025454 + 250025455.

It is an arithmetic number, because the mean of its divisors is an integer number (250025455).

Almost surely, 2^500050909 is an apocalyptic number.

It is an amenable number.

500050909 is a deficient number, since it is larger than the sum of its proper divisors (1).

500050909 is an equidigital number, since it uses as much as digits as its factorization.

500050909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 500050909 is about 22361.8181058697. The cubic root of 500050909 is about 793.7274627366.

The spelling of 500050909 in words is "five hundred million, fifty thousand, nine hundred nine".